Who Discovered It

Introduction Silver is a precious metal with many uses. It is used to in photography, dentistry, jewelry, utensils and tableware, currency, and optics. No one knows who discovered silver first. Like gold, it is one of the oldest elements known to mankind. History and Early Uses of Silver Humans have been mining silver for many thousands of years. Archeologists have found slag near the Aegean Sea dating back to 4000 BC. Silver is rarely found unmixed with other elements, so mining for it was difficult. The metal was often mixed with lead, which is poisonous. Many silver and lead miners died from lead poisoning in a few years’ time. Because of this, mining for these metals was forced labor, that is, slave labor. Silver has played an important role in shaping economies. In about 500 BC, the Athenian people discovered a silver mine in Laurion nearby. With this treasure they enriched their city and built a powerful navy. A rival city, Sparta, had its own silver mine. Carthage overran the...

The slope formula determines the position of a line with respect to its “x” and “y” coordinates. This mathematical calculation is the concern of Analytical Geometry which solves linear and geometric problem with the aid of Algebra. Thus, to the question who discovered the slope formula, it is necessary to look into who started Analytic Geometry. Rene Descartes 1596 Rene or Renee Decartes is the father of Analytical Geometry. He was a French mathematician, physicist, philosopher, and theologian. Many mathematics experts acknowledge him as the man who discovered the slope formula. He was said to have provided a method to solve the problem of lines and slopes in mathematics by his prowess in Algebra and Geometry. The basic slope formula is y=mx+b while the more complex point-slope formula is y-yl=m(x-x1). Because Descartes is the father of Analytical Geometry and this subject centers mostly on lines and slopes, he was the first to introduce solutions to slopes and linear problems....

Known as a chemical element that is identified with the atomic number of 28 and symbol of Ni, nickel is a metal that is ductile and hard. This element is classified under the transition metals. The metal is usually present in alloys like taenite and kamacite. It is also present in iron meteorites. Because of the distinct characteristics or properties of this element, it is widely used in producing metal apparatuses. In order to know more about this element, it is best if we start with the history of the discovery of nickel. Historical Background Who discovered nickel? This transition element was discovered by Swedish chemist Axel Fredrik Cronstedt in 1751. The discovery of the element happened when the chemist isolated copper from niccolite. Instead of extracting the metal, he isolated another element with silvery white color that Cronstedt named nickel. Even if Cronstedt was recognized as the scientist who discovered the element, there were evidences, which proved that nickel was used...

Mercury, be it the element or the planet, is quite elusive when it comes to its discoverer. But at least, as far as who discovered mercury the element is concerned, there’s a name worth mentioning. The First Unnamed Discoverers The Babylonians, among the first people groups of early civilization, is credited to be the first to put on record the use of the element mercury. This was some 3000 years ago when it was mixed freely with other products. It was then sometimes added in creams and ointments in dangerous proportions because it was not yet known then as a chemical element. At times poisoning was the result. The discovery of mercury as an element was in the 18th century. Incidentally, at about the same time, also 3000 years ago, the Sumerians discovered the planet Mercury. Like the Babylonians who discovered mercury and put in many records but not as an element, the Sumerians recorded the planet mercury quite a lot. It could be said that both element and planet had probably started...

The Discovery of the Dead Sea scrolls The famous Dead Sea Scrolls were discovered in 1947 in Qumran by a group of Bedouin goat herders. Qumran is located just a kilometer from the Dead Sea. While looking for a stray goat there, the herders wandered into a cave. They found a set of jars containing old manuscripts. Recognizing some value in this strange find, the Bedouin sold them to a shoemaker named Kando. Kando specialized in the buying and selling of antiquities. Of the seven jars that he’d bought, he sold three of them to Eleazar Sukenik of the Hebrew University. He then sold the other four to Mar Athansius, a member of the Syrian Orthodox monastery. Athansius later brought his scrolls to American School of Oriental Research. Not long adter that, western scholars gathered around the Dead Sea Scrolls like fireflies around light. Read more VN:F [1.9.17_1161]please wait...Rating: 7.5/10 (2 votes cast)